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【单选题】
最佳关税水平应等于（ ）。A.
零进口关税水平
B.
零进口关税与禁止性关税之间的水平
C.
禁止性关税水平
D.
禁止性关税以上的水平
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【单选题】You are writing a business e-mail, which of the following is an example of good e-mail etiquette?
A.
A proper, direct subject line is not a necessary par of business e-mail.
B.
Use abbreviations as much as possible and pay no attention to the spelling and grammar.
C.
Review the content of your e-mail prior to sending it out.
D.
Writ the reason for the letter directly.
【简答题】10 If you mailed a check with your order, as you claim,we failed to receive it. (按你所说,你已将支票和订单一同寄出了,但我们没有收到。)
【多选题】[105—108]
A.
三氧化二砷
B.
对氨基苯磺酸
C.
无水碳酸钠
D.
重铬酸钾
E.
邻苯二甲酸氢钾 标定下面滴定液所用的基准物质是 105．盐酸滴定液 106．硫代硫酸钠滴定液 107．亚硝酸钠滴定液 108．氢氧化钠滴定液
【简答题】听短文，选择正确答案.短文读两遍。 1. How many people are there in the photo? A. 5 B. 6 C. 7 2. Who is writing a letter? A. Ann. B. Ann's pen pal. C. Ann's brother. 3. What's Ann's grandmother doing? A. She is talking...
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